A2osX/.Docs/LIBBLKDEV.md
2018-06-18 08:22:50 +02:00

1.1 KiB

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GetProDOSCatSize

Compute space needed for ProDOS Catalog

In :

PUSHW = DevSize (in 512b blocks) PUSHB = Catalog Size (in blocks) PUSHB = Options

Out :

X=BlockCount (max 22) Y,A=BufSize (max $4400)

BuildProDOSCat

In :

PUSHW = DevSize (in 512b blocks) PUSHB = Catalog Size (in blocks) PUSHB = Options PUSHW = VolName (PSTR) PUSHW = DstBuf (Zero filled) Blk0 : ProDOS.BootBlk Blk1 : SOS.BootBlk Blk2...n : Volume Directory Blkn+1.. : Volume Bitmap (4096/Blk) max devSize = 65535 -> max 16 Bitmap Blk absolute MAX DstBuf size= 7 for Disk II(280blk),3.5(1600),3.5HD(2880) 22 for 32mb Hardisk...

TrkW16s

Write a track (16 sectors) In: PUSHW = Ptr to 16*256 buffer PUSHB = TrackNum * 4 : 0->140+ PUSHB = DSSS0000 Out: CC : success CS : A = Error A=0, currently starting/seeking...

TrkWNIB

Write a track (NIBBLE) In: PUSHW = Ptr to NIBBLE buffer (0 ended) PUSHB = TrackNum * 4 : 0->140+ PUSHB = DSSS0000 Out: CC : success CS : A = Error A=0, currently starting/seeking...